Littoral Geoacoustic Surveys Using an Adaptive Network of Gliders

Award Information
Agency: Department of Defense
Branch: Navy
Contract: N00014-04-M-0243
Agency Tracking Number: N041-141-1050
Amount: $100,000.00
Phase: Phase I
Program: SBIR
Awards Year: 2005
Solitcitation Year: 2004
Solitcitation Topic Code: N04-141
Solitcitation Number: 2004.1
Small Business Information
ALASKA NATIVE TECHNOLOGIES, LLC
PO Box 241085, Anchorage, AK, 99524
Duns: 126173074
Hubzone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: Y
Principal Investigator
 Eric Rogers
 Chief Systems Engineer
 (907) 569-0268
 eric@scifish.com
Business Contact
 Lance Ahern
Title: General Manager
Phone: (907) 569-0268
Email: lance@scifish.com
Research Institution
N/A
Abstract
Acoustic sensor systems are the backbone of both anti-submarine (ASW) and mine-countermeasure (MCM) systems. Inadequate knowledge of the acoustic environment, especially in denied areas, results from a lack of survey equipment, funding, and access to areas of tactical interest. Moreover, the acoustic environment can change substantially depending on conditions such as sound speed, water depth, and surface conditions. Predictability of specific acoustic conditions has proven difficult. Only the roughest estimates, by definition incorrect, are available to today's warfighter. The ability to measure the acoustic environment directly is essential. Of the many measurements possible the most useful to the warfighter are the sound velocity profile, bottom loss, and bottom reverberation. This proposal will design a system for determining bottom loss and bottom reverberation characteristics with an active acoustic source and distributed receivers. The proposed system will be suitable for deployment on autonomous underwater gliders, allowing investigation of denied areas. Multiple gliders may be driven by a detected "source" to adaptively move and reconfigure to achieve array gain as required.

* information listed above is at the time of submission.

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